Piperazine anhydrous is an organic compound with the formula C6H14N2. It is a white crystalline solid with a melting point of 77 C. It is a cyclic diamine and a derivative of piperazine. It is used as an anthelmintic in veterinary medicine and in humans, as well as an ingredient in some dietary supplements. Piperazine anhydrous is also used as a plasticizer, in paint, and as a stabilizing agent in rubber. It is also used in the manufacture of dyes, drugs, and in the synthesis of certain pharmaceuticals.